baber/WOPTO huggingface dataset:
Patent GB-1284659-A (GB)
Title: Improvements in or relating to electroluminiscent devices
Inventor: GUESIC JOSEPH EDWARD
IPC: H05B33/00
Filed: 1970-04-16
Abstract: 1284659 Electroluminescence WESTERN ELECTRIC CO Inc 16 April 1970 [16 April 1969] 18165/70 Heading C4S [Also in Division H1] An electroluminescent device comprises a P-N infra-red emitting diode 1 centrally positioned at the base of a dome shaped body 6 supporting phosphor 8 for converting the infrared to visible radiation, the dome being a hemisphere of radius rd or approximating thereto such that the curved surface is substantially entirely convex and at least 75% is within 30% of rd /preferably 85% and 15% respectively) from the centre of the base, the junction being such that no more than 35% lies outside a circle of radius r j  and no more than 35% (preferably 20%) of the area within the circle is unoccupied by the junction, and the relation is satisfied, n 1  and n 2  being refractive indices of dome and phosphor respectively. The diode may be circular or square for example and the diode and phosphor of GaAs. One or both diode regions may be Si doped with optional In additions to modify the band gap, e.g. with x = 0 to 0À1 and Si doping to 10<SP>17</SP> to 10<SP>18</SP>/c.c. The indium may increase the 0À93 GaAs emission to match a 0À94 to 0À98 Á phosphor absorption for example. Interstitial regions of the phosphor may include a transparent material having a refractive index >1 and preferably within 10% the phosphor index to reduce scattering. The phosphor may be overlaid with a transparent layer of Á 10% that of the phosphor and with or without an interposed dielectric coating and cathode 4 on N-type layer 2 adjacent P-type layer 3 may be ring shaped. Layer 8 outer surface may be domed to reduce internal reflections. Up converting phosphors typically employ Yb sensitizer and Er<SP>3+</SP> or Ho<SP>3+</SP> and Tb<SP>3+</SP> activators, Er<SP>3+</SP>-Ho<SP>3+</SP> mixtures also being specified. n 1  for GaAs is 3À5 for infra-red, n 2  typically 2 such as for lanthanum fluoride, barium ytterbium halides and oxyhalides of stoichiometric ranges in which the halogen to oxygen ratio is # 1 : 1 while rd/rj may be approx. 1À45. For an ambient Á of 1, the minimum phosphor radial thickness is desirably 0À75 the dome radius. For lesser dimensions, layer (15) (Fig. 2, not shown) may be included of Á approximating that of the phosphor (16), inner dome (22) being N-type GaAs and optional multilayer (23) reflective to infra-red but transparent to visible wavelengths may be included. The visible light output depends on the number of photon processes involved in emission.
Patent GB-302400-A (GB)
Title: Improvements in apparatus for the pneumatic separation or grading of solid materials
IPC: B03B4/06
Filed: 1927-10-08
Abstract: 302,400. Woodall-Duckham (1920), Ltd., and Duckham, A. M. Oct. 8, 1927. Pneumatic separating.-In pneumatic separating apparatus, the air after passing through the separator is returned to the fan through a dustcollecting chamber so constructed that the air is suddenly expanded, travels through the chamber without change of direction, is again expanded and reverses its direction as it leaves the chamber. Fig. 2 shows one form of apparatus. The air from the separator enters a chamber b by a narrow passage d, the consequent expansion depositing dust in the pockets c with discharge conveyers f. At the top of the chamber adjustable plates g again compress the air which is expanded in the cover i and reverses its direction in passing to the off-takes h leading to the fan. Flaps k prevent deposit of dust in the suction pockets formed by the plates g. The cover is open at the bottom to avoid undue variation of pressure in the chamber. Fig. 4 shows a modification in which the off-takes h to the fan are arranged along the middle line of the chamber, and adjustable and extensible plates q are hinged a short distance from the sides to allow dust to slide down into the pockets e. Vent slots l which can be more or less closed by slides are provided in the sides of the chamber.
Patent GB-315972-A (GB)
Title: Improvements in and in the manufacture of buckets, baths, wash-ups, and like hollow-ware
IPC: A47J47/18
Filed: 1928-06-23
Abstract: 315,972. Billingham, M., Billingham, S., and Perry, W. J. June 23, 1928. Buckets and pails.-A bucket, bath, or similar article is manufactured by assembling together and welding the separate components illustrated, in which 1 represents an open-ended tubular body, 3 a flangeless discous bottom closure and 4 a hoop-like foot.
Patent GB-449644-A (GB)
Title: Improved shaving brush holder
IPC: A45D27/04
Filed: 1935-06-26
Abstract: 449,644. Brush holders. FEAKES, E. P., 134, Woolwich Road, Abbey Wood, London. June 26,1935, No. 18238. [Class 19] [See also Group XIV] A shaving-brush holder is made from one or more pieces of metal, plastic, or other material, with spring fingers A to hold the handle of the brush and a bowl B to catch drip. A keyhole slot may be made in the upright portion for the passage of a screw or pin attached to a wall.
Patent GB-327065-A (GB)
Title: Improvements in fluid flow meters of the pressure difference type
IPC: G01F1/37
Filed: 1929-06-14
Abstract: 327,065. Sandison, A. G. S., and Electroflo Meters Co., Ltd. June 14, 1929. Liquid-level pressure gauges.-Comprises a float member with one portion located in one limb and a further portion located in the other limb of a U-tube gauge, the portions being so shaped as to cause a movement of the float on the pressure difference changing. In Fig. 1 a cylindrical chamber 1 holding mercury 2 has extending down from the top a cylindrical partition 3 the lower open end of which is sealed by the mercury. A pipe 4 connects the inner limb thus formed to the higher pressure, while a pipe 5 connects the outer limb to the lower pressure. A float 6 has a portion 7 of uniform cross-section moving in the inner limb to give a movement proportional to the square root of the pressure difference. The float member is wholly or in part made of a material such as ebonite having a coefficient of expansion equal to or greater than that of mercury. In a modification, Fig. 3, two downwardly extending cylindrical partitions divide the chamber into three portions, the two portions within the partitions 3 communicating with the low pressure by the pipe 5 while the portion outside the partitions are exposed to the high pressure fluid conveyed by the pipe 4. A float 6 has two portions 7 of uniform cross-section within the partitions and a shaped portion 8 in the space between the partitions, the three portions being connected to a cross-piece 9. The motion of the float is transmitted by rack and pinion to indicating mechanism. Discs 11 on the stems 10 close the end of the tubular partitions when the pressure exceeds a predetermined maximum to prevent the mercury being blown out of the gauge.
Patent GB-400564-A (GB)
Title: Improvements in and relating to blades for electric fans
IPC: F04D29/38
Filed: 1933-06-28
Abstract: 400,564. Screw fans. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London.-(General Electric Co. ; Schenectady, New York, U.S.A.) June 28, 1933, No. 18413. [Class 110 (i).] The blades of a fan are so constructed that the leading edge 16 of each is concave in shape and pointed near its periphery ; it extends behind the trailing edge 17 of the preceding blade. A preferred fan construction with three blades is shown, and the combined area of the blades is substantially the same as the disc area of the fan. The blades are secured to the hub 14 over resilient packing 19 by screws 15. A number of arcs a .. j with the fan axis as centre are shown on the plan view of a blade, Fig. 3. The peripheral edge 18 is a circular arc a in the trailing half of the blade, and a curve of decreasing radius in the leading half of the blade. Some air may therefore be drawn in over the leading part of the peripheral edge. Each of the arcs a .. j lies in a plane and the angle made by that plane with the plane of the fan increases from the outside arc a to the inside arc j. In a modification, each blade is substantially a plane surface, except at the trailing end where an additional bend is given to compensate for decreasing pitch. The construction and arrangement diminishes the noise caused by the fan.
Patent GB-408197-A (GB)
Title: Method of and apparatus for producing talking motion pictures
IPC: G03B31/00
Filed: 1932-06-29
Abstract: 408,197. Picture projection associated with sound reproduction. ELECTRICAL RESEARCH PRODUCTS, Inc., 195, Broadway, New York, U.S.A.-(Assignees of Knox, H. G. ; 21, East 87th Street, New York, U.S.A.) June 29, 1932, No. 18420. Void [Abridged as open to inspection under Sect. 91 of the Acts, Sept. 26, 1932]. [Class 40 (ii).] An associated picture projection and sound reproducing apparatus has associated therewith one or more auxiliary apparatus for projecting pictures, or reproducing sounds, or for producing a tinted effect on the main picture on the screen by the projection thereon of a tinted film. The auxiliary apparatus 16 is driven from the main picture and sound apparatus 13, 11, and may project on the screen 12, as " still " pictures, printed or written text in a foreign language corresponding to the sound reproduced by the apparatus 11 in a speaker 15 arranged behind the screen, or auxiliary views of the main pictures illustrating a lecture, &c. The projection from the apparatus 16 may be superposed on the main projected picture, or if used for reproducing sound it may be employed for any desired auxiliary sound or noises.
Patent GB-832928-A (GB)
Title: Shoe cementing press
IPC: A43D25/06
Filed: 1957-06-11
Abstract: 832,928. Shoe bottom presses. SCHUHMASCHINEN-GESELLSCHAFT HANKE & CO. June 11, 1957 [June 9, 1956], No. 18425/57. Class 17(1) In a shoe press, cylinders 3-5, Fig. 1, of equal or different diameters are slidably mounted in a guideway 2 and connected by flexible conduits 7, 8, which equalize the pressure in chambers 12-14. Pistons 9-11 carry pressure members 15-17 respectively. Fig. 3, shows an arrangement for equalizing the pressure at the pressure members mechanically. Pressure members 23-25 are mounted on vertically movable rods 20-22. Guide rods 20, 21 are connected by a lever 30 pivoted on a pin 31 which is secured to a vertically slidable rod 29. Guide rods 22, 29, are connected by a lever 32 pivoted on pin 33 mounted in a housing 34. Members 23-25 are horizontally adjustable on guideways 26-28. Figs. 4, 5, show modified forms of the central pressure member in which the pressure applied by members 35, 36 is equalized. Fig. 6 shows a hydraulically operated modification of the mechanism illustrated in Fig. 5, the pressure being equalized in cylinders 13<SP>1</SP>, 13<SP>11</SP> through conduit C. Cylinders 4<SP>1</SP> ,  4<SP>11</SP> may be made as separate elements and clamped to a bracket B in such a way as to permit them to be pivoted to different angles relative to each other. In a further modification, Fig. 7, a pressure member 49 presses against the bell and is returned by spring 50 which acts on a piston 48 when the pressure is released through a conduit 51. A control cylinder 55, Fig. 8, allows pressure to be applied to cylinders 14, 13, 12 one at a time so that hinged lasts are not broken or deformed by pressure being simultaneously applied to all three. The hydraulic pressure medium entering through I forces back a piston 59 against a spring 60 and uncovers the inlets to conduits 58, 57, 56 in order. The pressure is released in the reverse order. Fig. 9, shows a modification in which pressure is supplied from a common manifold 61 through conduits 62-64. Springs may be supplied in chambers 65-67 for lifting pressure members 15-17 when the pressure in the manifold 61 is reduced e.g. through a suction conduit, not shown. Various features of the different emodiments may be combined e.g. one hydraulic press member could be used with two mechanically linked members. Also the pressure pad under the shoe could be held stationary whilst the pressure members are moved bodily
Patent GB-813406-A (GB)
Title: Improvements relating to harvesting mechanism
Inventor: HAWKINS JOHN CLEMENT
IPC: A01D29/00
Filed: 1956-06-14
Abstract: 813,406. Harvesting ground-nuts. NATIONAL RESEARCH DEVELOPMENT CORPORATION. June 5, 1957 [June 14, 1956], No. 18479/56. Class 6(3). A ground-nut harvester comprises a rigging tool 11 which excavates the plants, a conveyer 15, 16 which carries the plants upwardly with their crop-carrying parts dangling and a beater 26 rotated as the plants are conveyed and adapted to deliver repeated blows to the dangling parts, the beater being driven simultaneously with the conveyer. The apparatus is similar to that described in Specification 748,547 and comprises a pair of parallel endless belts 15, 16 which are maintained in contact by spring-loaded pulleys 22, 24 bearing upon their adjacent runs. Upon certain pulleys 24 beaters are mounted, each beater being carried by a downward extension of the pulley shaft 25 and comprising hollow sheet-metal wings 28, 29 U-shaped in horizontal cross-section, each wing being pivoted at 30 to the shaft-extension and having a bolt and slot connection 31, 33 to the lower end of the extension so that the width of the beater arms is variable, The conveyer is driven from any convenient mechanism 19.
Patent GB-1506042-A (GB)
Title: Electrical switching and control systems
IPC: H02B1/20
Filed: 1975-05-02
Abstract: 1506042 Electric couplings ARTECHE INSTRUMENTACION Y SISTEMAS ELECTRONICOS SA 2 May 1975 [21 June 1974 12 Feb 1975 (2)] 18483/75 Heading H2E A panel assembly comprises a frame defining a plurality of housings each with a pair of contacts 19, a plurality of modular units each insertable into a said housing and each comprising a pair of complementary contacts 15, means 21 for short-circuiting the housing contacts 19 and means 18 on the units for breaking the shortcircuit when the unit is inserted into its housing and for restoring the short-circuit as the unit is withdrawn but before the mating contacts 15, 19 disengage. The means 18 comprises a projecting lug which separates spring-loaded arms 21 to break the short-circuiting as the unit is inserted; the lug is sufficiently short to be removed from between the arms 21 before contacts 15, 19 disengage when the unit is withdrawn. Co-operating hexagonal pegs 23, 24 ensure correct coupling. Captive screws (8) in the units are used to effect initial withdrawal or final insertion of the units. A unit includes a plurality of threaded sleeve contacts (32, Figs. 20, 21, 9, not shown) which receive a plug 30 or 31, for example to vary a transformer tapping. The unit also comprises groups of three sockets 36 in the form of blades 37 adapted to receive a checking plug 39 comprising contacts 40, 42 and insulating lugs 43 which respectively connect with and separate selected blades 37. The lugs 43 and contacts 40, 42 are in four groups of three (Fig. 15, not shown) with the contacts 42 of each group comprising a linked pair. Reference has been directed by the Comptroller to Specification 1,197,299.
Patent GB-1070054-A (GB)
Title: Impact tool
Inventor: ROLL JACK ARTHUR
IPC: B25D11/10
Filed: 1965-05-03
Abstract: 1,070,054. Percussive tools. ALBRITTON ENGINEERING CORPORATION. May 3, 1965, No. 18510/65. Heading B4C. [Also in Division F2] An impact tool comprises a rotatable shaft 20 having at least one roller bearing 22 adapted to co-operate with a cam 26 so that under the action of a spring 30, a hammer 24 is driven on an impact stroke the cam being so shaped that the bearing maintains constant line contact with the cam surface during its entire travel over the latter surface. The cam 26 is attached to the hammer 29 which is provided with a shoulder 62 normally adapted to be urged on to an abutment 64 by the spring 30. The shaft 20 is rotated by a motor 18 which may be driven by compressed air or liquid. In operation when the shaft is rotated the hammer is raised against the loading of the spring by means of the inclined surfaces of the cam engaging with the roller bearings 22. When the roller bearings reach the high points 94 of the cam the hammer drops rapidly to strike the tool 70 via an anvil 32. In the modification shown in Fig. 4, a free-fall hammer 118 is connected to the main hammer assembly 28a by means of a pin- and-slot device 120, 122, the arrangement being such that when the assembly 28a is stopped by engagement of shoulder 62a, 64a on the impact stroke, the hammer 118 continues under inertia force to strike the tool via anvil 32a. Cooling or clearing air may be fed by means of a pump 112 to the tool via passages 115, 116. In a further modification, oil may be fed into a cylinder 12 surrounding the spring 30 in order to lubricate the working parts. The hammer is formed with a groove 54 for engagement with a guide 56; the groove may be helical in order to provide a twisting movement to the tool 70 and so even the wear of the hammer.
Patent GB-427300-A (GB)
Title: A method of making garments by the wearer thereof
IPC: A41H3/08
Filed: 1933-06-29
Abstract: 427,300. Cutting - out garments. MAUBERT, M. B. A., 6, Rue de Hanovre, Paris. June 29, 1933, Nos. 18537 and 18538. Void [Abridged as open to inspection under Sect. 91 of the Acts, Dec. 31, 1934]. [Class 141] A length of dress material is produced with a printed lay out of pattern sections, said sections being drafted to the individual measurements of the customer. The design of garment and the fabric is chosen by the customer. One method of carrying out the inventions consists in making on a mannequin 1, Fig. 1, a model 2 of the garment, the contours 4<1> of the various parts being transferred to pattern elements 3<1>, 3<2>, 3<3>, Fig. 4. A plurality of inscribed or circumscribed contours 4<1>, 4<2>, 4<3> may be made from pattern elements produced on a stock sized mannequin. To enable the customer to mark out a margin, the instrument shown in Fig. 12 is employed. This is provided with two wheels with variable spacing adjustments, one wheel 10<1> following the pattern and the other 10<2> tracing a line for basting.
Patent GB-305900-A (GB)
Title: Improvements in or relating to conveyors for furnaces
IPC: F27D3/02
Filed: 1928-06-26
Abstract: 305,900. Kathner, A. T. June 26, 1928. Roller-way conveyers.-In a conveyer for furnaces comprising a series of discs mounted on parallel rotary shafts, the hub of each disc is spaced from its shaft in order to reduce the transmission of heat to the shaft. In one construction each disc 3, Fig. 1, is formed with an integral sleeve-like hub 4, Fig. 3, having an internal diameter substantially greater than the diameter of the shaft 1. Radial arms 5 projecting from the inner surface of the hub, or from a ring disposed within the hub, keep it in concentric relation with the shaft. One end. of each hub is reduced to fit into the adjacent end of the next hub and these parts are provided with spaced lugs 8 and recesses 9, respectively, to prevent relative rotation. The hubs of the. end discs are engaged with spacers 6 which turn with the shafts. These spacers also may be used to separate the discs. The space between the hubs, or the spacers, and the shaft is packed with asbestos fibre or other heat insulating material. In another construction the discs are replaced by hollow members 3b, Fig. 6, the hubs of which have the ends toothed for interengagement. In other constructions each hub 4<c>, Fig 7, has a pair of internal ribs 17 which embrace the shaft and a pair of external ribs 18, and each hub 4<d>, 'Fig. 8. has a slight swelling 3d which forms the carrying surface.
Patent GB-479429-A (GB)
Title: Improvements in or relating to apparatus for separating dust from gaseous fluids
IPC: B01D45/14
Filed: 1936-07-04
Abstract: 479,429. Centrifugal dust separators. HOWDEN & CO., Ltd., J., and ULANDER, P. H. N. July 4, 1936, No. 18642. [Class 23] A centrifugal dust separator has a chamber 1 of scroll form with a tangential inlet 2 and an axial cleangas outlet 3 connected to the suction side of a fan 4 with an impeller 5 and discharge branch 6. Dust, which is thrown outwards centrifugally, is forced by the secondary current in the chamber 1 through two series of outlet slots 7 in, or adjacent to, the end walls of the chamber. The slots 7 open into pockets 8 which join a discharge passage 9 communicating with a secondary separator 13. The dust is retained in the separator 13, and the gas accompanying it through the slots 7 is returned through the duct 14 to the centre of the chamber 1. Vanes 15 are arranged around the outlet 3 within the chamber 1. They are fixed to pivots 23 which can be simultaneously operated by an external ring 19, Fig. 14, so that the degree of whirling and the pressure of the discharging gas can be regulated. The chamber 1 may be divided into two chambers 17, 18 by a partition 16, Fig. 12; the rim of the partition has two parts, each with a dust discharge slot 7a opening into the passage 9.
Patent GB-534209-A (GB)
Title: Improvements in apparatus for setting the fuzes of projectiles
IPC: F42C17/00
Filed: 1939-06-27
Abstract: 534,209. Fuze-setting machines. JOSEPH, F. A. June 27, 1939, No. 18692. [Class 9 (i)] Relates to fuze-setting machines having coaxial setting members and a traveller in quickthreaded engagement with one of the setting members for effecting relative angular displacement between the members, the traveller further having a primary adjustment for data and a secondary two-revolution searching adjustment. According to the invention, the fuze-setting operation is effected whilst the shell is stationary in the machine. In the form shown, the fuzesetting pawls 28, 29 are carried respectively by a quick-pitch screw 23 and by a concentric sleeve 25, and a traveller 45 moving in slots 27 in the sleeve engages as a nut with the screw. For graduated adjustment of the relative rotation of the pawls, a sleeve 3 is rotated by bevel gear 6 from a handle 4 in accordance with data from the control station. Inside the sleeve 3 is feathered a sleeve 10 carrying the traveller 45 and having a screw, thread engaging a member 11. After this preliminary setting, which may be made before the projectile is inserted in the machine, rack gearing 18, 14 is rotated to translate the members 11, 10 and move the pawlcarrying members through two revolutions to search for the notches and to engage the pawls therewith, the final relative adjustment of the pawls being in accordance with the preliminary graduated setting. The traveller is formed in two parts 37, 38 relatively adjustable by screws 39 to take up backlash.
Patent GB-220439-A (GB)
Title: Improvements relating to folding or deck chairs
IPC: A47C4/30
Filed: 1923-07-20
Abstract: 220,439. Hart, T. H. July 20, 1923. Seating-surfaces, attaching. - A rail e for detachably connecting the seating fabric to deck and like chairs, inserted in the hem at each end of the fabric d has hooked ends f detachably to engage the usual cross raiL b. According to the Provisional Specification the rail instead of being provided with hooks, may be plain so as to fit into notches in the side rails of the chair. The bottom may also be attached to the cross rail b by eyelets or spring buttons.